Gutter Oil

Watch this video:

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Did you watch that?  If not, watch it.  Disgusting! Gross!  Blech!  
Gutter oil is one of the less delightful aspects of living here.  Gutter oil is very common.  It even has its own Wikipedia page!   However, it can be pretty much avoided by not eating in cheapo establishments, shunning street food and avoiding "great deals" on cooking oil.  Everyone knows about it, but people keep eating in cheap places, even though they are most likely aware that they are consuming pure nastiness.   I guess when you have the highest percentage of male smokers in the world, a little carcinogenic grease is just an extra bonus.
The reason it exists at all is because there are low life rat bastards that don't give a damn about anyone but themselves, and are willing to do pretty much anything to make a buck no matter who it harms. And they have people who need a job to do the dirty work.  ("I'll be able to build a new house in my village!")
It's pretty easy to decry China for such things as gutter oil.  What kind of culture is it, where such a practice is common?  Actually, most countries and cultures.  In the US, just this year, Freedom Industries in West Virginia had a massive chemical spill into the the Elk River, poisoning the water supplies for over 300,000 people.  This was due to the company using very old storage tanks next to the river, which failed.  Their lax storage practices saved them some money and they put people's health at risk.  They're making gutter oil.
When banks make predatory loans, they make money and people suffer---gutter oil.
When banks and Wall Street crash the world economy to make some bucks---gutter oil.
When politicians do the bidding to the same polluters, banks and Wall Street because they accept massive campaign money from these groups---gutter oil.
The human race is breeding, polluting, and consuming at a rate that is unsustainable.  The climate and environment are degrading at an alarming rate, and yet nothing is being done about it.  We are producing gutter oil on a global scale.

Of course, there is a solution to the gutter oil issue in China. Biofuels could be produced.  The oil collection system is already in place.  Will anyone try to make the change?  I doubt it.  Ditto on the world's "gutter oil" problems.  Humans are massive gutter oil producers.